FIG.1 : SEM micrographs of well–aligned (A) and randomly–aligned (B)silk fibroin (SF) fibers prepared by the electrospunning method, and schematic drawing of laminated interpenetrating structures from the composites of poly(ethylene glycol) (PEG) hydrogels and SF fibers (C, D), and the elastic moduli of SF and PEG–SF samples (E, F).

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